Cooking-stove



G. G. WOLFE.

Cooking Stove.

Patented Oct. 23, 1860.

NoI 30,514.

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UNITED sTATEs PATENT GURBON G. WTOLFE, OF TROY, NEW' `YORK.

COOKING-STOVE.

Specification of Letters Patent No. 30,514, dated October 23, 1860.

To all whom t may concern:

Be it known that I, GURDON Gr. VVoLrE, of the city of Troy, in the county of Rensselaer and State of New York, have invented a new and useful Improvement in Cooking- Stoves; and I do hereby declare that the following contains a full and exact description of the same, reference being had to the annexed drawings, in which-- Figure l is a central vertical section from front to rear of one of my improved cooking stoves; Fig. 2 a horizontal section of the same at, `and plan of some parts below the line .a z; and Fig. 3 an inclinedsection of the same at, and elevation df some parts in front of the line g/ y. j

The same letters refer to like parts in all the figures; and the red arrows indicate the course of the gases of combustion, and the black ones the course of the atmospheric air through the stove.

In my improved cooking stove, the oven, A, is arrangedalong one side of, and is extended lower than the lire-box B for the fuel; and the smoke-fines, C, leadfrom the top of the fire-box, first over the top-plate, d, of the oven, and afterward extend along the back-plate, e, and bottom-plate, f, of the oven. Between the oven and the lire-box there is a chamber G, which has communicaw tion with the open air, and with a sheet-flue, H, which extends down along the front plate, z', of that part of the oven which is below the fire-box. At or near the Vlower end of the sheet-flue, H, is a slit or aperture, J, by which that flue communicates with the oven. Between the top of the oven and the smoke-flue over it, is a sheet flue-space, K, which communicates at one end by a slot or apertures, L, with the oven, and at the other end with the lire-chamber by a slit or series of small holes, M, arranged just above the place for the fuel in the fire-box. An abundance of atmospheric airis admitted into the bottom of the burning fuel in the iire box, through the grate a, and a chamber, O, having communication with the open air.

The heated gaseous products of combustion pass from the lire-box, B, through the smoke-dues C, first, over the top-plate, CZ, of the oven A; and afterward along in Contact with the outside of the back-plate, e, and bottom plate, f, of the oven; and thereby heat the top, bottom and back plates of the oven suiiiciently. The draft of the gases of combustion through the smoke-fines of the stove, causes a current of atmosphericfair to enter into the chamber G, and to pass from thence successively through the sheet-lue H, aperture J, oven A, `apertures L, 'line-space K, and apertures M, into the-fire-chamber just above the fuelin the fire-box; so as to` i ing from the chamber Gr, through thefflue# space H into the oven, first-protects the upa per `portion of thefront side of that part of the oven which extends below the fire box, from the too intense heatradiated from the under side of the ignited fuel on the grate, a, and thereby has its heat increased; and

next protects the lower portion of thel frontV side of that `part of the oven from the cold air to which it is exposed on the outside, at o', And, thatsame current of atmospheric air, in passing from the oven through` the fluespace K, into the lire-chamber just above the burning fuel, protects the toplside,1`cl, of the oven from the too powerful heat `of the gases of eombustionin their passage, when hottest, over the top of the oven; and in so doing has its heat thereby greatly increased so that it supports the combustion of the unconsumed gases, which rise from `the fuel,

i with greater energy.

The arrangement ofthe fire-box B, oven A, smoke flues, C, C, C, air-heating chamber G, hot-air flue H, outlet opening J, hot air flue K, inlet opening L, and discharge aperture M, all in combination as above described, constitutes my invention.

I do not claim the above described arrangement of the air-heating chamber G, hot-air flue H, outlet opening J, hot air passage K, inlet opening L, and discharge aperture M, in combination with the oven A, tire-box B, and a smoke or gas flue leading from the top of the re box first over the top of the oven, when smoke-fines are not extended or arranged along both the back-plate, e, and the bottom plate, f, of the oven. In my improved cooking stove it iS absolutely necessary that the smoke flues should be arranged along both the bottom and the back side of the oven; for the heat communicated to the oven from `the lire-` boX, and from the smoke-flue over the top of the oven, and from or by the current of heated air passing from the .chamber G into and through the oven, is, all quite insufcient for ordinary baking purposes, and requires the aid of theheat Which is given to the oven byv the smoke-ues, C, Where they ext-end along the back-plate e,l and bottom plate f, of the oven. -And Ido not claim the arrangement of the chamber G, air-flue H, opening J, chamber K, and opening L, in combination With thev oven, A, lire-box, B, and smoke-flues, C, along the top, back, and bottom of the oven, When Vthere is not any opening orapertures, M,

from the chamber K, into the fire-chamber, S, just overv the fire-box' B. For in my improved cooking stove it is not only necessary that the chamber G should havecommuni- Vcation with the open air by some suitable air-passage or opening, g, and with the oven by means of the flue-space H and open ing J; and that the smoke-fines C should extend along the bottom and back sides of the oven as Well as over its top;-`but it is also absolutely essential to my improved cooking stove that the chamber K should t have communication with the lire-chamber by a slot or apertures M, and With the oven by an opening or openings L, so that the through the chamber K shall be discharged into the fire-chamber or just above the fuel in the fire-box, Where the combustible gases and, fuliginous matters Which rise from the burning fuel are in an ignited state, and consequently in a condition to take re and burn upon being supplied vvith atmospheric z air; and Where the caloric which is set free by the combustion of those gases and sooty particles Will increase the heat of cooking vessels or boilers placed upon, or in the potholes of, the ltop-plate T of the stove.

If the stove Was so constructed that the air Would be conducted lfrom the oven through the chambers G and K and from the back end of the space K into the smokeiues'of the stove at-or near the back end of the top-plate d, of the oven, the heated air thus discharged into'the smoke flues Would not generally increase the combustion of the gases and sooty matters evolved from the burning fuel, for those gases and carbonaceous particles do not ordinarily have enough heat left to make them take lire and burn upon mingling vvithV the air thus dis charged into the smokeiues at a distance from the fire fboX; or if those gases and sooty ,particles should take fire andV burnl upon minglingwvith airintroduced into the gas flues C at the back end of the chamber K, the caloric setfree by such combustion Would indeed serve tosupport or increase the combustion ofthe solid fuel in the fire `gboX, lbut Would not generally pass` up through and rise above themass of burning 1coal in a sufficiently pure state'to support l and complete the combustion of the carbonio oXid and other combustible matters Which rise out of and above the ignited coal.

heated air Which passes from theV Aoven y What I claim as nevvfof my invention and desire to securev by Letters Patent, isv

The combination and arrangement of the GURDoN e. vvotrn. 1

Witnesses: v J. V. R. RossMAN,

AUSTIN F. PARK. 

